From 9d72af6e3582977196e3474903950206dc3c590e Mon Sep 17 00:00:00 2001 From: "Arnaud Patard (Rtp)" Date: Thu, 17 Feb 2011 15:31:29 +0100 Subject: [PATCH] efikamx: add usb h1 support Now that usb has been fixed, we can enable usb h1 on efikamx Signed-off-by: Arnaud Patard Signed-off-by: Sascha Hauer --- arch/arm/mach-mx5/Kconfig | 1 + arch/arm/mach-mx5/board-mx51_efikamx.c | 14 ++++ arch/arm/mach-mx5/efika.h | 4 + arch/arm/mach-mx5/mx51_efika.c | 107 ++++++++++++++++++++++++- 4 files changed, 122 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig index aa20a38ccc8a..1405464c1034 100644 --- a/arch/arm/mach-mx5/Kconfig +++ b/arch/arm/mach-mx5/Kconfig @@ -119,6 +119,7 @@ config MX51_EFIKA_COMMON select IMX_HAVE_PLATFORM_IMX_UART select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX select IMX_HAVE_PLATFORM_SPI_IMX + select MXC_ULPI if USB_ULPI config MACH_MX51_EFIKAMX bool "Support MX51 Genesi Efika MX nettop" diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index 272de6e883e7..8f173366b29c 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -211,6 +211,20 @@ static void __init mx51_efikamx_init(void) gpio_request(EFIKAMX_RESET, "reset"); gpio_direction_output(EFIKAMX_RESET, 1); } + + /* + * enable wifi by default only on mx + * sb and mx have same wlan pin but the value to enable it are + * different :/ + */ + gpio_request(EFIKA_WLAN_EN, "wlan_en"); + gpio_direction_output(EFIKA_WLAN_EN, 0); + msleep(10); + + gpio_request(EFIKA_WLAN_RESET, "wlan_rst"); + gpio_direction_output(EFIKA_WLAN_RESET, 0); + msleep(10); + gpio_set_value(EFIKA_WLAN_RESET, 1); } static void __init mx51_efikamx_timer_init(void) diff --git a/arch/arm/mach-mx5/efika.h b/arch/arm/mach-mx5/efika.h index c8280435934a..014aa985faae 100644 --- a/arch/arm/mach-mx5/efika.h +++ b/arch/arm/mach-mx5/efika.h @@ -1,6 +1,10 @@ #ifndef _EFIKA_H #define _EFIKA_H +#define EFIKA_WLAN_EN IMX_GPIO_NR(2, 16) +#define EFIKA_WLAN_RESET IMX_GPIO_NR(2, 10) +#define EFIKA_USB_PHY_RESET IMX_GPIO_NR(2, 9) + void __init efika_board_common_init(void); #endif diff --git a/arch/arm/mach-mx5/mx51_efika.c b/arch/arm/mach-mx5/mx51_efika.c index a249ca3c4138..c08ec63415e5 100644 --- a/arch/arm/mach-mx5/mx51_efika.c +++ b/arch/arm/mach-mx5/mx51_efika.c @@ -30,6 +30,10 @@ #include #include +#include +#include +#include + #include #include #include @@ -40,7 +44,12 @@ #include "devices.h" #include "efika.h" -#define MX51_USB_PLL_DIV_24_MHZ 0x01 +#define MX51_USB_CTRL_1_OFFSET 0x10 +#define MX51_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) +#define MX51_USB_PLL_DIV_19_2_MHZ 0x01 + +#define EFIKAMX_USB_HUB_RESET IMX_GPIO_NR(1, 5) +#define EFIKAMX_USBH1_STP IMX_GPIO_NR(1, 27) #define EFIKAMX_SPI_CS0 IMX_GPIO_NR(4, 24) #define EFIKAMX_SPI_CS1 IMX_GPIO_NR(4, 25) @@ -81,6 +90,29 @@ static iomux_v3_cfg_t mx51efika_pads[] = { MX51_PAD_CSPI1_SS1__GPIO4_25, MX51_PAD_CSPI1_RDY__ECSPI1_RDY, MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, + + /* USB HOST1 */ + MX51_PAD_USBH1_CLK__USBH1_CLK, + MX51_PAD_USBH1_DIR__USBH1_DIR, + MX51_PAD_USBH1_NXT__USBH1_NXT, + MX51_PAD_USBH1_DATA0__USBH1_DATA0, + MX51_PAD_USBH1_DATA1__USBH1_DATA1, + MX51_PAD_USBH1_DATA2__USBH1_DATA2, + MX51_PAD_USBH1_DATA3__USBH1_DATA3, + MX51_PAD_USBH1_DATA4__USBH1_DATA4, + MX51_PAD_USBH1_DATA5__USBH1_DATA5, + MX51_PAD_USBH1_DATA6__USBH1_DATA6, + MX51_PAD_USBH1_DATA7__USBH1_DATA7, + + /* USB HUB RESET */ + MX51_PAD_GPIO1_5__GPIO1_5, + + /* WLAN */ + MX51_PAD_EIM_A22__GPIO2_16, + MX51_PAD_EIM_A16__GPIO2_10, + + /* USB PHY RESET */ + MX51_PAD_EIM_D27__GPIO2_9, }; /* Serial ports */ @@ -105,13 +137,13 @@ static int initialize_otg_port(struct platform_device *pdev) /* Set the PHY clock to 19.2MHz */ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK; - v |= MX51_USB_PLL_DIV_24_MHZ; + v |= MX51_USB_PLL_DIV_19_2_MHZ; __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); iounmap(usb_base); mdelay(10); - return mx51_initialize_usb_hw(0, MXC_EHCI_INTERNAL_PHY); + return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY); } static struct mxc_usbh_platform_data dr_utmi_config = { @@ -119,6 +151,73 @@ static struct mxc_usbh_platform_data dr_utmi_config = { .portsc = MXC_EHCI_UTMI_16BIT, }; +static int initialize_usbh1_port(struct platform_device *pdev) +{ + iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP; + iomux_v3_cfg_t usbh1gpio = MX51_PAD_USBH1_STP__GPIO1_27; + u32 v; + void __iomem *usb_base; + void __iomem *socregs_base; + + mxc_iomux_v3_setup_pad(usbh1gpio); + gpio_request(EFIKAMX_USBH1_STP, "usbh1_stp"); + gpio_direction_output(EFIKAMX_USBH1_STP, 0); + msleep(1); + gpio_set_value(EFIKAMX_USBH1_STP, 1); + msleep(1); + + usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); + socregs_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET); + + /* The clock for the USBH1 ULPI port will come externally */ + /* from the PHY. */ + v = __raw_readl(socregs_base + MX51_USB_CTRL_1_OFFSET); + __raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN, + socregs_base + MX51_USB_CTRL_1_OFFSET); + + iounmap(usb_base); + + gpio_free(EFIKAMX_USBH1_STP); + mxc_iomux_v3_setup_pad(usbh1stp); + + mdelay(10); + + return mx51_initialize_usb_hw(0, MXC_EHCI_ITC_NO_THRESHOLD); +} + +static struct mxc_usbh_platform_data usbh1_config = { + .init = initialize_usbh1_port, + .portsc = MXC_EHCI_MODE_ULPI, +}; + +static void mx51_efika_hubreset(void) +{ + gpio_request(EFIKAMX_USB_HUB_RESET, "usb_hub_rst"); + gpio_direction_output(EFIKAMX_USB_HUB_RESET, 1); + msleep(1); + gpio_set_value(EFIKAMX_USB_HUB_RESET, 0); + msleep(1); + gpio_set_value(EFIKAMX_USB_HUB_RESET, 1); +} + +static void __init mx51_efika_usb(void) +{ + mx51_efika_hubreset(); + + /* pulling it low, means no USB at all... */ + gpio_request(EFIKA_USB_PHY_RESET, "usb_phy_reset"); + gpio_direction_output(EFIKA_USB_PHY_RESET, 0); + msleep(1); + gpio_set_value(EFIKA_USB_PHY_RESET, 1); + + usbh1_config.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT | + ULPI_OTG_EXTVBUSIND); + + mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); + mxc_register_device(&mxc_usbh1_device, &usbh1_config); +} + static struct mtd_partition mx51_efika_spi_nor_partitions[] = { { .name = "u-boot", @@ -164,8 +263,8 @@ void __init efika_board_common_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efika_pads, ARRAY_SIZE(mx51efika_pads)); - mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); imx51_add_imx_uart(0, &uart_pdata); + mx51_efika_usb(); imx51_add_sdhci_esdhc_imx(0, NULL); spi_register_board_info(mx51_efika_spi_board_info, -- 2.20.1